http://sn.1w6.org/file/mk-20160810T204617-azqvrtg.html
OK, by now it seems old records have been 'dropped' - where ping first showed results from Gandi, now it says host not known, and dig comes back with NXDMAIN (same thing). #kindofprogres. I also poked areound a little and it seems Gandi's 'standard' TTL is 3 hours (10800). I'll just go to bed, this should have sorted itself out by #tomorrow morning. :)